Asked by james
In a test Freya scores 25% more marks than Eva. Eva scores 50% more marks than Dominic. In total the three children score 140 marks. The test if out of 80. What percentage does Dominic score in the test?
Answers
Answered by
oobleck
Freya = 5/4 Eva
Eva = 3/2 Dominic
So, if Dominic scored d points, then
d + 3/2 d + 5/4 * 3/2 d = 140
35/8 d = 140
d = 32
32/80 = 2/5 = 40%
Eva = 3/2 Dominic
So, if Dominic scored d points, then
d + 3/2 d + 5/4 * 3/2 d = 140
35/8 d = 140
d = 32
32/80 = 2/5 = 40%
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